Regex Tester

Matches are highlighted in real-time with color-coded spans as you type your pattern.

One-click toggles for g (global), i (case insensitive), m (multiline), and s (dotall) flags.

See every match with its position, length, and captured group values listed below.

Named capture groups (?<name>...) are extracted and displayed per match.

One-click examples for common patterns: email, URL, hex color, IPv4, and date.

Copy the full regex including delimiters and flags (e.g. /pattern/gi) with one click.